# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.db import models
from django.template.loader import render_to_string
# Create your models here.
from django.contrib.auth.models import User
from django.db import models

class Link(models.Model):
    STATUS_NORMAL = 1
    STATUS_DELETE = 0
    STATUS_ITEMS = (
        (STATUS_NORMAL, '正常'),
        (STATUS_DELETE, '删除'),
    )
    title = models.CharField(max_length=50,verbose_name='标题')
    href = models.URLField(verbose_name='链接')
    status = models.PositiveIntegerField(default=STATUS_NORMAL,choices = STATUS_ITEMS,verbose_name='状态')
    weight = models.PositiveIntegerField(default=1,choices=zip(range(1,6),
                                                               range(1,6)),verbose_name='权重',help_text='权重高展示顺序靠前')
    owner = models.ForeignKey(User,verbose_name='作者')
    created_time = models.DateTimeField(auto_now_add=True,verbose_name='创建时间')

    class Meta:
        verbose_name = verbose_name_plural = '友联'

class SideBar(models.Model):
    DISPLAY_HTML = 1
    DISPLAY_LATEST = 2
    DISPLAY_HOT = 3
    DISPLAY_COMMENT = 4
    SIDE_TYPE = (
        (DISPLAY_HTML,'HTML'),
        (DISPLAY_LATEST,'最新文章'),
        (DISPLAY_HOT,'最热文章'),
        (DISPLAY_COMMENT,'最近评论'),
    )
    STATUS_SHOW = 1
    STATUS_HIDE = 0
    STATUS_ITEMS = (
        (STATUS_SHOW,'展示'),
        (STATUS_HIDE,'隐藏'),
    )
    # SIDE_TYPE = (
    #     (1,'HTML'),
    #     (2,'最新文章'),
    #     (3,'最热文章'),
    #     (4,'最近评论'),
    # )
    title = models.CharField(max_length=50, verbose_name='标题')
    display_type = models.PositiveIntegerField(default=1,choices=SIDE_TYPE,verbose_name='展示类型')
    content = models.CharField(max_length=50,blank=True,verbose_name='内容')
    status = models.PositiveIntegerField(default=STATUS_SHOW,choices=STATUS_ITEMS,verbose_name='状态')
    owner = models.ForeignKey(User,verbose_name='作者')
    created_time = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
    @classmethod
    def get_all(cls):
        return cls.objects.filter(status=cls.STATUS_SHOW)

    @property
    def content_html(self):
        '''直接渲染模板'''
        from blog.models import Post
        from comment.models import Comment

        result = ''
        if self.display_type == self.DISPLAY_HTML:
            result = self.content
        elif self.display_type == self.DISPLAY_LATEST:
            context = {
                'posts':Post.latest_posts()
            }
            result = render_to_string('config/blocks/sidebar_posts.html',context)
        elif self.display_type == self.DISPLAY_HOT:
            context = {
                'posts': Post.hot_posts()
            }
            result = render_to_string('config/blocks/sidebar_posts.html', context)
        elif self.display_type == self.DISPLAY_COMMENT:
            context = {
                'comment':Comment.objects.filter(status=Comment.STATUS_NORMAL)
            }
            result = render_to_string('config/blocks/sidebar_comments.html', context)
        return result

    class Meta:
        verbose_name = verbose_name_plural = '侧边栏'